[Cryptech Tech] More tests and a bug

[Joachim Strömbergson]

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Aloha!

I've updated the python models for sha1 and sha256 with more test cases.
These are then used to support the development of tests for coretest_hashes.

I've also updated the hash_tester.py. First of all refactoring to allow
development of new tests and then added more tests. One test have
revealed a bug in coretest and I need to fix that one before the test
case with huge messages can be performed on the FPGA board.

(Sending message blocks that contain SOC and EOC bytes as bad for the
parser in coretest. ;-)

I've yet to implement a way to programmatically check the results from
the tests. If anyone wants to take a stab at doing that it would be great.

- -- 
Med vänlig hälsning, Yours

Joachim Strömbergson - Alltid i harmonisk svängning.
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 Joachim Strömbergson          Secworks AB          joachim at secworks.se
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